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问题 单项选择题

正常肾盂最佳显影时间是注入对比剂后（）

A.5～10分钟

B.10～15分钟

C.15-30分钟

D.20～30分钟

E.30～45分钟

答案

参考答案：C

解析：正常情况下，肾盏、肾盂最佳显影时间是注入对比剂后15～30分钟。

填空题

用括号内所给词的适当形式填空。

1. — The             (develop) of new products is important to our company. Do you know?

    — Yeah, it is our duty to try our best to deal with it.

2. I think the most helpful             (invent) is the light bulb (电灯泡). It gives people more time to work and

     play.

3. The foreigner spoke English so             (quick) that I could hardly understand what he said.

4. The large population of China has caused many             (difficult). For example, many farmers have no

    farmland to grow crops on.

5. — What do you think of the English             (train) school? 

    — It is great. I have improved my English a lot.

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单项选择题 A1/A2型题

医学伦理的"有利"原则不包括（）。

A.努力使患者受益

B.关心患者的客观利益和主观利益

C.选择受益最大，伤害最小的行动方案

D.努力预防或减少难以避免的伤害

E.把患者的利益看得高于一切
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